Orbit C series 1-1/8` Upper headset 45/45 degree bearing Includes star nut and top cap IS42/28.6 Black 28.6 34 30 8.8mm 45?/45? 1-1/8`
Orbit Integrated 1-1/8` Upper Angular contact bearings Includes Star nut and top cap IS41.2/28.6 Black 28.6 34 30 8.2mm 36?/45? 1-1/8`